lspci: Decode PCIe 6.0 Slot Power Limit values

lspci: Decode PCIe 6.0 Slot Power Limit values

When the Slot Power Limit Scale field equals 00b (1.0x) and Slot
Power Limit Value exceeds EFh, the following alternative encodings
are used:

  F0h   > 239 W and ≤ 250 W Slot Power Limit
  F1h   > 250 W and ≤ 275 W Slot Power Limit
  F2h   > 275 W and ≤ 300 W Slot Power Limit
  F3h   > 300 W and ≤ 325 W Slot Power Limit
  F4h   > 325 W and ≤ 350 W Slot Power Limit
  F5h   > 350 W and ≤ 375 W Slot Power Limit
  F6h   > 375 W and ≤ 400 W Slot Power Limit
  F7h   > 400 W and ≤ 425 W Slot Power Limit
  F8h   > 425 W and ≤ 450 W Slot Power Limit
  F9h   > 450 W and ≤ 475 W Slot Power Limit
  FAh   > 475 W and ≤ 500 W Slot Power Limit
  FBh   > 500 W and ≤ 525 W Slot Power Limit
  FCh   > 525 W and ≤ 550 W Slot Power Limit
  FDh   > 550 W and ≤ 575 W Slot Power Limit
  FEh   > 575 W and ≤ 600 W Slot Power Limit
  FFh   Reserved for Slot Power Limit Values above 600 W

Previously only values F0h, F1h and F2h were covered.